Mayer Carolyn, Urrutia Catherine, Jerez-Quezada Carol, Barra Patricio Javier, Abanto Michel
Facultad de Ciencias Agropecuarias y Medioambiente, Universidad de La Frontera, Temuco 4811230, Chile.
Programa de Doctorado en Ciencias Mención Biología Celular y Molecular Aplicada, Universidad de La Frontera, Temuco 4811230, Chile.
Microorganisms. 2025 Apr 16;13(4):911. doi: 10.3390/microorganisms13040911.
was first isolated from Antarctica and gained interest for its ability to thrive in extreme environmental conditions and degrade recalcitrant compounds. Some strains have been identified as phosphobacteria, which play a significant role in phosphorus (P) cycling by solubilizing or mineralizing insoluble phosphate forms for plant uptake. However, there is limited knowledge about the genomic mechanisms involved in P-cycling in the species . In this study, we aimed to evaluate the genomic potential of as a phosphobacteria species by screening genes related to P-cycling. Two strains from pisciculture sludge residues were selected to sequence their complete genomes based on their ability to solubilize inorganic P in vitro, and an in silico analysis with all the genomes was performed to identify the presence of phosphorus-cycling-related genes. Genes mainly involved in the metabolic processes of two-component systems and transporters, and genes involved in organic acid production and alkaline phosphatases, were identified. This study helps us to understand the metabolic potential of this species and its role as a solubilizer of phosphates and thus a facilitator of plant-available phosphorus, which could guide the use of this species of phosphobacteria in the development of sustainable agriculture.
最初是从南极洲分离出来的，因其能够在极端环境条件下茁壮成长并降解难降解化合物而受到关注。一些菌株已被鉴定为磷细菌，它们通过溶解或矿化不溶性磷酸盐形式以供植物吸收，在磷（P）循环中发挥着重要作用。然而，关于该物种中参与磷循环的基因组机制的了解有限。在本研究中，我们旨在通过筛选与磷循环相关的基因来评估作为磷细菌物种的基因组潜力。基于它们在体外溶解无机磷的能力，从养鱼业污泥残渣中选择了两株菌株对其完整基因组进行测序，并对所有基因组进行了计算机分析以鉴定磷循环相关基因的存在。鉴定出了主要参与双组分系统和转运蛋白代谢过程的基因，以及参与有机酸产生和碱性磷酸酶的基因。这项研究有助于我们了解该物种的代谢潜力及其作为磷酸盐溶解剂从而促进植物有效磷的作用，这可为该磷细菌物种在可持续农业发展中的应用提供指导。
